公开(公告)号：US06755992B2

公开(公告)日：2004-06-29

申请号：US10289330

申请日：2002-11-07

申请人： Satoshi Okamoto ,  Manabu Hirakawa ,  Shinji Ootomo

发明人： Satoshi Okamoto ,  Manabu Hirakawa ,  Shinji Ootomo

IPC分类号： C09K1920

CPC分类号： C08G63/065 ,  C08G63/605 ,  C08G63/87

摘要： The present invention provide a liquid crystalline polyester that can be used in production of a molded article having sufficient mechanical strengths in which the melted liquid crystalline polyester has sufficient fluidity in thin-walled portions when the thin-walled molded article is manufactured, and to provide a method for producing the liquid crystalline polyester. A liquid crystalline polyester obtained by copolymerizing 4-acyloxybenzoic acids (I) and 2-acyloxy-6-naphthoic acids (II) in the presence of an imidazole (V) can be used in production of a molded article in which the melted liquid crystalline polyester has sufficient fluidity in thin-walled portions when the thin-walled molded article is manufactured, and which has sufficient mechanical strengths as well, thereby completing the present invention. Further, a liquid crystalline polyester obtained by copolymerizing 4-acyloxybenzoic acids (I), 2-acyloxy-6-naphthoic acids (II), 4,4′-diacyloxybiphenyls (III) and phthalic acids (IV) in the presence of an imidazole (V) can be used in production of a molded article in which the melted liquid crystalline polyester has sufficient fluidity in thin-walled portions when the thin-walled molded article is manufactured, and which has sufficient mechanical strengths as well, thereby completing the present invention.

摘要翻译： 本发明提供一种可用于生产具有足够的机械强度的成型制品的液晶聚酯，其中当制造薄壁模塑制品时，熔融的液晶聚酯在薄壁部分中具有足够的流动性，并且提供 一种液晶聚酯的制造方法。 通过在咪唑（V）的存在下将4-酰氧基苯甲酸（I）和2-酰氧基-6-萘甲酸（II）共聚而获得的液晶聚酯可用于制备熔融液晶 当制造薄壁模塑制品时，聚酯在薄壁部分具有足够的流动性，并且其具有足够的机械强度，从而完成了本发明。 此外，通过在咪唑存在下共聚4-酰氧基苯甲酸（I），2-酰氧基-6-萘甲酸（II），4,4'-二酰氧基联苯（III）和邻苯二甲酸（IV）得到的液晶聚酯 （V）可以用于制造薄壁成型体时熔融液晶聚酯在薄壁部分具有足够的流动性的成型体的制造中，并且具有足够的机械强度，从而完成了本发明 发明。

公开(公告)号：US06491990B1

公开(公告)日：2002-12-10

申请号：US09609381

申请日：2000-07-03

申请人： Owain Llyr Parri ,  Ian Victor Edward Hassall ,  Tara Louise Cutler

发明人： Owain Llyr Parri ,  Ian Victor Edward Hassall ,  Tara Louise Cutler

IPC分类号： C09K1920

CPC分类号： C09K19/2007 ,  C09K19/3833 ,  C09K2019/0448 ,  C09K2019/3095 ,  Y10T428/10 ,  Y10T428/1073 ,  Y10T428/1082

摘要： The invention relates to monoreactive mesogenic compounds of formula I wherein P, Sp, X, n, Y1, Y2, r1, r2, r3, Z1 and Z2 are defined herein.

摘要翻译： 本发明涉及式I的单反应性介晶化合物，其中P，Sp，X，n，Y 1，Y 2，r 1，r 2，r 3，Z 1和Z 2在本文中定义。

公开(公告)号：US06294109B1

公开(公告)日：2001-09-25

申请号：US08489920

申请日：1995-06-13

申请人： Banahalli R. Ratna ,  Ranganathan Shashidhar ,  Jawad Naciri ,  Gregory P. Crawford ,  Joel M. Schnur

发明人： Banahalli R. Ratna ,  Ranganathan Shashidhar ,  Jawad Naciri ,  Gregory P. Crawford ,  Joel M. Schnur

IPC分类号： C09K1920

CPC分类号： C09K19/406 ,  C07C205/37 ,  C07C205/42 ,  C07C205/43 ,  C07F7/0838

摘要： A new class of mesogenic compounds has the formula: where R1 is an ester (—COO—) group; R2 is H, NO2, CN, F, or Cl; R3 is H, CH2═CH, or (CH3)3Si; k is 1 or 2; q is 0 or 1; m is from 2 to 16; n is from 2 to 12; r is from 0 to n−1 (but not greater than 3 or 4); s=1 when r=0, s=0 when r≠0; x is from 0 to 4; and * denotes the position of a chiral carbon. Compounds within this class will have a smectic A* phase, and in some cases a smectic C* phase. Mixtures including one or more of these mesogenic compounds will be useful for a variety of applications.

摘要翻译： 一类新的介晶化合物具有下式：其中R1是酯（-COO-）基团; R2是H，NO2，CN，F或Cl; R3是H，CH2 = CH或（CH3）3Si; k为1或2; q为0或1; m为2〜16; n为2至12; r为0〜n-1（但不大于3或4）; 当r = 0时s = 1，当r <0时s = 0; x为0〜4; 和*表示手性碳的位置。 该类中的化合物将具有近晶A *相，并且在一些情况下具有近晶C *相。 包括这些介晶化合物中的一种或多种的混合物可用于各种应用。

公开(公告)号：US06743377B2

公开(公告)日：2004-06-01

申请号：US09983103

申请日：2001-10-23

申请人： Koichi Sato ,  Akira Tsuboyama ,  Yukio Hanyu

发明人： Koichi Sato ,  Akira Tsuboyama ,  Yukio Hanyu

IPC分类号： C09K1920

CPC分类号： C09K19/38 ,  H01L51/5012 ,  Y10T428/10

摘要： A polymeric compound has a hexagonal system order (as its crystal system) in a higher order smectic phase, such as smectic B phase, smectic L phase, smectic E phase, etc. The polymeric compound is produced through polymerization of a liquid crystal compound having a polymerizable functional group, such as an acrylic group or a methacrylic group, in a state of assuming a hexagonal system order. An electronic device, preferably an electroluminescence device, using a layer of the polymeric compound disposed between a pair of electrodes exhibits good luminescence and carrier transport performances while retaining excellent reliability.

摘要翻译： 高分子化合物在高阶近晶相中具有六方晶系（作为其晶体体系），如近晶相B，近晶L相，近晶E相等。聚合物通过聚合具有 可聚合官能团，例如丙烯酸基或甲基丙烯酸基，呈​​现六方系列顺序的状态。 使用设置在一对电极之间的聚合物的层的电子器件，优选电致发光器件，具有良好的发光和载流子传输性能，同时保持优异的可靠性。

公开(公告)号：US06409937B1

公开(公告)日：2002-06-25

申请号：US09537248

申请日：2000-03-28

申请人： Vadakkethonippurathu Sivankutty Nair Prasad ,  Chennakkattu Krishna Sadasivan Pillai ,  Marayil Ravindranathan

发明人： Vadakkethonippurathu Sivankutty Nair Prasad ,  Chennakkattu Krishna Sadasivan Pillai ,  Marayil Ravindranathan

IPC分类号： C09K1920

CPC分类号： C08G63/605 ,  C08G63/81 ,  C08G63/826 ,  C08G63/83 ,  C08G63/85 ,  H05K1/0326

摘要： The invention relates to a process for the preparation of melt processable liquid crystalline terpolyesters of the general formula I by the in situ acetylation of a monomer selected from (4-hydroxyphenyl) acetic acid/ 3(4-hydroxyphenyl)propionic acid and hydroquinone/4,4′-biphenol/2,6-naphthylene diol followed by acidolysis polycondensation with or without a solvent and a catalyst, under reduced pressure for the efficient removal of acetic acid to effect higher molecular weight formation. Post polymerisation is effected at higher temperatures below the decomposition temperature purification by soxhlet extraction using solvent mixtures selected from acetone-alcohol, acetone-methylethyl ketone.

摘要翻译： 本发明涉及通过选自（4-羟基苯基）乙酸/ 3（4-羟基苯基）丙酸和氢醌/ 4的单体的原位乙酰化制备通式I的可熔融加工的液晶三聚酯的方法， 4'-联苯酚/ 2,6-亚萘基二醇，然后在有或没有溶剂和催化剂的情况下在减压下进行酸解缩聚以有效除去乙酸以实现更高分子量的形成。 后聚合在低于分解温度的较高温度下通过使用选自丙酮 - 醇，丙酮 - 甲基乙基酮的溶剂混合物的索格利特萃取进行。

公开(公告)号：US06287646B1

公开(公告)日：2001-09-11

申请号：US09200848

申请日：1998-11-30

申请人： Kiyofumi Takeuchi ,  Haruyoshi Takatsu ,  Sadao Takehara ,  Masashi Osawa

发明人： Kiyofumi Takeuchi ,  Haruyoshi Takatsu ,  Sadao Takehara ,  Masashi Osawa

IPC分类号： C09K1920

CPC分类号： C09K19/2007 ,  C07C63/04 ,  C09K19/46 ,  Y10T428/10

摘要： A novel liquid crystal compound, a nematic liquid crystal composition, and a liquid crystal display system using the composition are disclosed herein. The liquid crystal compound is represented by the general formula (I): wherein R represents a hydrogen atom or a straight chain alkyl group having 1 to 7 carbon atoms and each of X, Y and Z independently represents hydrogen atom or fluorine atom. The nematic liquid crystal composition of the present invention can provide liquid crystal materials in response to desired purposes even by its addition in a small amount without spoiling other characteristics.

摘要翻译： 本文公开了一种新型液晶化合物，向列型液晶组合物和使用该组合物的液晶显示系统。 液晶化合物由通式（I）表示：其中R表示氢原子或具有1至7个碳原子的直链烷基，X，Y和Z各自独立地表示氢原子或氟原子。 本发明的向列型液晶组合物可以通过少量添加而不损害其他特性而提供响应于期望目的的液晶材料。

公开(公告)号：US06258296B1

公开(公告)日：2001-07-10

申请号：US09462988

申请日：2000-01-19

申请人： Masahiro Johno ,  Yuki Motoyama ,  Takahiro Matsumoto ,  Hiroshi Mineta ,  Tomoyuki Yui

发明人： Masahiro Johno ,  Yuki Motoyama ,  Takahiro Matsumoto ,  Hiroshi Mineta ,  Tomoyuki Yui

IPC分类号： C09K1920

CPC分类号： C09K19/2007 ,  C07C69/92 ,  C09K19/02

摘要： A fluorine-substituted compound of the following general formula (1) or (2), and a ferrielectric liquid crystal composition comprising the above compound and a specific ferrielectric liquid crystal compound, wherein, in the formula (1), each of X1 and X2 is a hydrogen atom, or one of them is a hydrogen atom and the other is a fluorine atom, p is an integer of 0 to 3 and q is an integer of 1 to 3, and in the formula (2), each of X1 and x2 is a hydrogen atom, or one of them is a hydrogen atom and the other is a fluorine atom, p is an integer of 1 to 3 and q is an integer of 1 to 3.

摘要翻译： 下述通式（1）或（2）的氟取代的化合物，以及包含上述化合物和特定的电介质液晶化合物的电介质液晶组合物，其中，在式（1）中，X 1和X 2 是氢原子，其中一个为氢原子，另一个为氟原子，p为0〜3的整数，q为1〜3的整数，式（2）中，X 1 x2为氢原子，其中一个为氢原子，另一个为氟原子，p为1〜3的整数，q为1〜3的整数。

公开(公告)号：US06200654B1

公开(公告)日：2001-03-13

申请号：US08917167

申请日：1997-08-25

申请人： Eike Poetsch ,  Volker Meyer ,  Volker Reiffenrath ,  Andreas Wachtler ,  Ulrich Finkenzeller ,  Hans Adolf Kurmeier ,  Reinhard Hittich ,  Bernhard Rieger ,  David Coates ,  Simon Greenfield ,  Robert William Clemitson

发明人： Eike Poetsch ,  Volker Meyer ,  Volker Reiffenrath ,  Andreas Wachtler ,  Ulrich Finkenzeller ,  Hans Adolf Kurmeier ,  Reinhard Hittich ,  Bernhard Rieger ,  David Coates ,  Simon Greenfield ,  Robert William Clemitson

IPC分类号： C09K1920

CPC分类号： C07C17/12 ,  C07C17/263 ,  C07C17/269 ,  C07C25/18 ,  C07C25/24 ,  C07C43/225 ,  C07C69/76 ,  C07C255/50 ,  C07C2601/14 ,  C07D213/26 ,  C07D239/26 ,  C09K19/0403 ,  C09K19/12 ,  C09K19/14 ,  C09K19/16 ,  C09K19/3001 ,  C09K19/3003 ,  C09K19/3028 ,  C09K19/3441 ,  C09K19/3444 ,  C09K19/3469 ,  C09K2019/0407 ,  C09K2019/0444 ,  C09K2019/3021 ,  Y10T428/10

摘要： 1,4-disubstituted 2,6-difluorobenzene compound of formula I wherein R is an alkyl or alkenyl radical, A1 and A2, in each case independently of one another, are (a) a trans-1,4-cyclohexylene radical in which a CH2 group may be replaced by —O— and/or —S, (b) a 1,4-phenylene radical in which a CH group may be replaced by N, (c) 1,4-cyclohexenylene, 1,4-bicyclo(2,2,2)octylene, piperidine-1,4-diyl, naphthalene-2,6-diyl, decahydronaphthalene-2,6-diyl or 1,2,3,4-tetrahydronaphthalene-2,6-diyl, Z1 and Z2 are —CO—O—, —O—CO—, —CH2—O—, —OCH2—, —CH2CH2—, —CH═CH—, —C≡C— or a single bond m and n are 0, 1, 2 or 3, (m+n) is 1, 2 or 3, X is R or F, Cl, CF3, —OCF3, or —OCHF2, —OCF5, —CN or —NCS with the proviso that at least one of the radicals A1 and A2 present in the molecule is are suitable as components of liquid-crystalline media.

摘要翻译： 式Ⅰ的1,4-二取代的2,6-二氟苯化合物，其中R是烷基或烯基，A1和A2各自独立地是（a）反式-1,4-亚环己基，其中CH2 基团可以被-O-和/或-S替代，（b）其中CH基团可以被N，（c）1,4-亚环己烯基，1,4-双环（ 2,2,2）辛烯，哌啶-1,4-二基，萘-2,6-二基，十氢萘-2,6-二基或1,2,3,4-四氢化萘-2,6-二基，Z1和 Z2是-CO-O-，-O-CO-，-CH2-O-，-OCH2-，-CH2CH2-，-CH = CH-，-C = C-或单键，n为0,1， 2或3，（m + n）是1,2或3，X是R或F，Cl，CF 3，-OCF 3或-OCHF 2，-OCF 5，-CN或-NCS，条件是至少一个基团 分子中存在的A1和A2适合作为液晶介质的组分。

公开(公告)号：US06805921B2

公开(公告)日：2004-10-19

申请号：US10212230

申请日：2002-08-06

申请人： Yasumasa Norisue ,  Yuki Motoyama ,  Masahiro Johno

发明人： Yasumasa Norisue ,  Yuki Motoyama ,  Masahiro Johno

IPC分类号： C09K1920

CPC分类号： C09K19/586 ,  Y10T428/10

摘要： An optically active compound of the following general formula (1), wherein A is —C≡C— or —COO—, each of R1 and R2 is independently CnH2n+1—, (C2H5)2CHCH2C*H(CH3)OOC—, CmH2m+1C*H(CH3)OOC— or C6H5C*H(CH3)OOC— in which n is an integer of 2 to 5, m is an integer of 5 to 9, C6H5— is phenyl group, and C* is an asymmetric carbon, provided that there is no case where R1 and R2 are together CnH2n+1— or C6H5C*H(CH3)OOC— and that when both R1 and R2 are CmH2m+1C*H(CH3)OOC—, m in CmH2m+1C*H(CH3)OOC— represented by R1 and m in CmH2m+1C*H(CH3)OOC— represented by R2 may be different integers. The optically active compound of the present invention is excellently valuable as a chiral dopant since it has properties that its helical twisting power (HTP) is at least 9, that a helical pitch induced decreases with an increase in temperature and further that its birefringence (&Dgr;n) is large.

摘要翻译： 下列通式（1）的光学活性化合物，其中A为-C = C-或-COO-，R1和R2各自独立地为C n H 2n + 1，（C 2 H 5）2 CHCH 2 C * H（CH 3）OOC-， CmH2m + 1C * H（CH3）OOC-或C6H5C * H（CH3）OOC-，其中n为2〜5的整数，m为5〜9的整数，C6H5-为苯基，C *为 只要不存在R 1和R 2一起为C n H 2n + 1或C 6 H 5 C * H（CH 3）OOC-的情况，并且当R 1和R 2均为C m H 2m + 1C * H（CH 3）OOC-时，m C m H 2 m 由R1表示的+ 1C * H（CH3）OOC-，R2表示的CmH2m + 1C * H（CH3）OOC-中的m可以是不同的整数。本发明的光学活性化合物作为手性掺杂剂是非常有价值的，因为它 具有其螺旋扭转功率（HTP）至少为9的性质，螺旋桨距诱导随着温度的升高而降低，并且进一步其双折射（Deltan）大。

公开(公告)号：US06793983B1

公开(公告)日：2004-09-21

申请号：US09868866

申请日：2001-06-21

申请人： Michael Heckmeier ,  Brigitte Schuler ,  Kazuaki Tarumi ,  Peer Kirsch ,  Volker Reiffenrath

发明人： Michael Heckmeier ,  Brigitte Schuler ,  Kazuaki Tarumi ,  Peer Kirsch ,  Volker Reiffenrath

IPC分类号： C09K1920

CPC分类号： C09K19/3066 ,  C09K19/3001 ,  C09K19/3003 ,  C09K19/3028 ,  C09K19/3402 ,  C09K19/42 ,  C09K2019/3422 ,  Y10T428/10

摘要： The invention relates to a liquid-crystalline medium based on a mixture of polar compounds of positive dielectric anisotropy, characterized in that it comprises one or more compounds of the general formula I and at least one compound of the formula in which the substituents are as defined in claim 1.

摘要翻译： 本发明涉及一种基于正介电各向异性的极性化合物的混合物的液晶介质，其特征在于其包含一种或多种通式I的化合物和至少一种所述式的化合物，所述取代基如权利要求中所定义 1。